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| author | Larry Wall <lwall@jpl-devvax.jpl.nasa.gov> | 1990-08-08 17:07:07 +0000 |
|---|---|---|
| committer | Larry Wall <lwall@jpl-devvax.jpl.nasa.gov> | 1990-08-08 17:07:07 +0000 |
| commit | 00bf170e31343ccc4fac7a63f6a3acf5e76c3616 (patch) | |
| tree | 64f2ca6ce7de08a6bae7fb4d11de65e8d49396be /eg/relink | |
| parent | 33b78306b8a6f9a33cf09697c8c3167d2111ea12 (diff) | |
| download | perl-00bf170e31343ccc4fac7a63f6a3acf5e76c3616.tar.gz | |
perl 3.0 patch #25 patch #19, continued
See patch #19.
Diffstat (limited to 'eg/relink')
| -rw-r--r-- | eg/relink | 75 |
1 files changed, 68 insertions, 7 deletions
@@ -1,14 +1,18 @@ #!/usr/bin/perl +'di'; +'ig00'; +# +# $Header: relink,v 3.0.1.2 90/08/09 03:17:44 lwall Locked $ +# +# $Log: relink,v $ +# Revision 3.0.1.2 90/08/09 03:17:44 lwall +# patch19: added man page for relink and rename +# ($op = shift) || die "Usage: relink perlexpr [filenames]\n"; if (!@ARGV) { - if (-t) { - @ARGV = <*>; - } - else { - @ARGV = <STDIN>; - chop(@ARGV); - } + @ARGV = <STDIN>; + chop(@ARGV); } for (@ARGV) { next unless -l; # symbolic link? @@ -22,3 +26,60 @@ for (@ARGV) { symlink($_, $name); } } +############################################################################## + + # These next few lines are legal in both Perl and nroff. + +.00; # finish .ig + +'di \" finish diversion--previous line must be blank +.nr nl 0-1 \" fake up transition to first page again +.nr % 0 \" start at page 1 +';<<'.ex'; #__END__ ############# From here on it's a standard manual page ############ +.TH RELINK 1 "July 30, 1990" +.AT 3 +.SH LINK +relink \- relinks multiple symbolic links +.SH SYNOPSIS +.B relink perlexpr [symlinknames] +.SH DESCRIPTION +.I Relink +relinks the symbolic links given according to the rule specified as the +first argument. +The argument is a Perl expression which is expected to modify the $_ +string in Perl for at least some of the names specified. +For each symbolic link named on the command line, the Perl expression +will be executed on the contents of the symbolic link with that name. +If a given symbolic link's contents is not modified by the expression, +it will not be changed. +If a name given on the command line is not a symbolic link, it will be ignored. +If no names are given on the command line, names will be read +via standard input. +.PP +For example, to relink all symbolic links in the current directory +pointing to somewhere in X11R3 so that they point to X11R4, you might say +.nf + + relink 's/X11R3/X11R4/' * + +.fi +To change all occurences of links in the system from /usr/spool to /var/spool, +you'd say +.nf + + find / -type l -print | relink 's#/usr/spool#/var/spool#' + +.fi +.SH ENVIRONMENT +No environment variables are used. +.SH FILES +.SH AUTHOR +Larry Wall +.SH "SEE ALSO" +ln(1) +.br +perl(1) +.SH DIAGNOSTICS +If you give an invalid Perl expression you'll get a syntax error. +.SH BUGS +.ex |